Communications Security Establishment Canada - ECHELON

ECHELON

Under the 1948 UKUSA agreement, CSEC's intelligence is shared with the United States National Security Agency (NSA), the British Government Communications Headquarters (GCHQ), the Australian Defence Signals Directorate (DSD) and New Zealand's Government Communications Security Bureau (GCSB). Along with these services from the United States, the UK, New Zealand and Australia, CSEC is believed to form the ECHELON system. Its capabilities are suspected to include the ability to monitor a large proportion of the world's transmitted civilian telephone, fax and data traffic. The intercepted data, or "dictionaries" are "reported linked together through a high-powered array of computers known as ‘Platform’.